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What kind of statement is the switch statement?


Asked by Anaya Wright on Dec 12, 2021 FAQ



Switch Statement. The switch-case statement is a multi-way decision making statement. Unlike the multiple decision statement that can be created using if-else, the switch statement evaluates the conditional expression and tests it against the numerous constant values.During execution,the branch corresponding to the value...
Besides,
The body of a switch statement is known as a switch block. A statement in the switch block can be labeled with one or more case or default labels. The switch statement evaluates its expression, then executes all statements that follow the matching case label.
In this manner, A switch statement contains one or more case labels which are tested against the switch expression. When the expression match to a case then the associated statements with that case would be executed. The switch statement must be an integral type. Case labels must be constants. Case labels must be unique. Case labels must end with a colon.
Thereof,
A general syntax of how switch-case is implemented in a ‘C’ program is as follows: switch (expression) { case value-1: Block-1; Break; case value-2: Block-2; Break; case value-n: Block-n; Break; default: Block-1; Break; } Statement-x; The expression can be integer expression or a character expression.
In respect to this,
Duplicate case values are not allowed. The value for a case must be of the same data type as the variable in the switch. The value for a case must be a constant or a literal. Variables are not allowed. The break statement is used inside the switch to terminate a statement sequence.